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US 12,007,758 B2Granted
Process state monitoring device and process state monitoring method
AssigneeJfe Steel Corporation
InventorsTakehide Hirata, Tatsuhiro Sue, Masafumi Matsushita, Yohei Harada
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Abstract
A process state monitoring device incudes a processor including hardware, the processor being configured to: separate two or more components from time series data of a value indicating a state of a process; compute a characteristic value from each of the separated components; and classify the state of the process on the basis of the computed characteristic values.
Claims10
A process state monitoring device comprising a processor comprising hardware, the processor being configured to:
- separate two or more components from time series data of a value indicating a state of a process;
- compute a characteristic value from each of the separated components;
- classify the state of the process on the basis of the computed characteristic values;
- search a past database for an operation case similar to the process on the basis of the computed characteristic values;
- determine a similarity of the computed characteristic values and characteristic values of the operation case on the basis of a distance or an angle, in a variable space composed of a plurality of characteristic values, depending on the number of characteristic values to be compared;
- and
- compute, as a contribution, the component contributing to the similarity.
4 more elements
A process state monitoring method comprising:
- separating two or more components from time series data of a value indicating a state of a process;
- computing a characteristic value from each of the separated components;
- classifying the state of the process on the basis of the computed characteristic values;
- searching a past database for an operation case similar to the process on the basis of the computed characteristic values;
- determining a similarity of the computed characteristic values and characteristic values of the operation case on the basis of a distance or an angle, in a variable space composed of a plurality of characteristic values, depending on the number of characteristic values to be compared;
- and
- computing, as a contribution, the component contributing to the similarity.
4 more elements
Dependencies are inferred from the claim text.